Funding for this research was provided by:
Avon Foundation for Women (02-2010-117)
Division of Cancer Prevention, National Cancer Institute (P30-CA006927)
Received: 20 January 2019
Accepted: 20 September 2019
First Online: 23 October 2019
Ethics approval and consent to participate
: This study was reviewed and approved by the internal review boards (IRB) of the involved institutions:University of Umea, Sweden and Fox Chase Cancer Center, Philadelphia, PA, USA.(Dnr07-156 M with amendments 08–020 and 2010/397–32; FCCC-IRB#02–829).All eligible subjects signed an informed consent to participate in this study.
: Not applicable.
: The authors declare that they have no competing interests.